ZyXEL Communications Internet Security Appliance ZyWALL5UTM 4.0 User Manual page 15

ZyWALL 5/35/70 Series User's Guide
Chapter 14
Anti-Virus .............................................................................................................. 254
14.2 Introduction to the ZyWALL Anti-Virus Scanner .............................................255
14.3 General Anti-Virus Setup ...............................................................................257
Chapter 15
Anti-Spam ............................................................................................................. 262
15.2 Anti-Spam General Screen ............................................................................266
Chapter 16
Content Filtering Screens ................................................................................... 274
16.1 Content Filtering Overview .............................................................................274
16.3 Content Filtering with an External Database ..................................................276
16.6 Customizing Keyword Blocking URL Checking ..............................................286
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13.3.3 Signature Actions ..................................................................................244
13.3.4 Configuring IDP Signatures ..................................................................245
13.3.5.1 Query Example 1 ........................................................................247
13.3.5.2 Query Example 2 ........................................................................249
13.4.1 mySecurity Zone ...................................................................................250
13.4.2 Configuring IDP Update ........................................................................251
14.1.1 Types of Computer Viruses .................................................................254
14.1.2 Computer Virus Infection and Prevention .............................................254
14.1.3 Types of Anti-Virus Scanner ................................................................255
14.2.1 How the ZyWALL Anti-Virus Scanner Works .......................................256
14.2.2 Notes About the ZyWALL Anti-Virus .....................................................256
14.4.1 mySecurity Zone ...................................................................................259
14.4.2 Configuring Anti-virus Update ...............................................................259
15.1.1 Anti-Spam External Database ...............................................................262
15.1.1.1 SpamBulk Engine ........................................................................263
15.1.1.2 SpamRepute Engine ...................................................................263
15.1.1.3 SpamContent Engine ..................................................................263
15.1.1.4 SpamTricks Engine .....................................................................264
15.1.2 Spam Threshold ....................................................................................264
15.1.3 Phishing ................................................................................................264
15.1.4 Whitelist ................................................................................................265
15.1.5 Blacklist .................................................................................................265
15.1.6 SMTP and POP3 ..................................................................................265
15.1.7 MIME Headers ......................................................................................266
16.1.1 Restrict Web Features ..........................................................................274
16.1.2 Create a Filter List ................................................................................274
16.1.3 Customize Web Site Access ................................................................274
16.6.1 Domain Name or IP Address URL Checking ........................................286
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